Dear Readers, Find the aptitude test questions to crack latest bank exams. We regularly provide 20 aptitude test questions daily for students. Aspirants practice these questions on a regular basis to improve your score in aptitude section. Aspirants preparing for the exams can make use of this “20-20” Quantitative Aptitude Questions. Here we have started New Series of Practice Materials specially for IBPS RRB Assistant Prelims 2018. Aspirants those who are preparing for the exams can use this “20-20” Quantitative Aptitude Questions.
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Directions (6 – 10): What value should come in the place of question mark (?) in the following number series?
9, 14, 51, 188, 965, ?
Correct
Answer: b)
The pattern is, *2 -2^{2}, *3 +3^{2}, *4 – 4^{2}, *5 + 5^{2}, *6 – 6^{2},..
The answer is, 5754
Incorrect
Answer: b)
The pattern is, *2 -2^{2}, *3 +3^{2}, *4 – 4^{2}, *5 + 5^{2}, *6 – 6^{2},..
The answer is, 5754
Question 8 of 20
8. Question
Directions (6 – 10): What value should come in the place of question mark (?) in the following number series?
785, 797, 817, 847, 889, 945, ?
Correct
Answer: d)
The pattern is, +(3*4), +(4*5), +(5*6), +(6*7), +(7*8), +(8*9),…
The answer is, 1017
Incorrect
Answer: d)
The pattern is, +(3*4), +(4*5), +(5*6), +(6*7), +(7*8), +(8*9),…
The answer is, 1017
Question 9 of 20
9. Question
Directions (6 – 10): What value should come in the place of question mark (?) in the following number series?
31, 33, 64, 194, 774, ?
Correct
Answer: a)
The pattern is, *1 + 2, *2 – 2, *3 + 2, *4 – 2, *5 +2,..
The answer is, 3872
Incorrect
Answer: a)
The pattern is, *1 + 2, *2 – 2, *3 + 2, *4 – 2, *5 +2,..
The answer is, 3872
Question 10 of 20
10. Question
Directions (6 – 10): What value should come in the place of question mark (?) in the following number series?
16, 24, 36, 54, 81, ?
Correct
Answer: c)
The pattern is, *1.5
The answer is, 121.5
Incorrect
Answer: c)
The pattern is, *1.5
The answer is, 121.5
Question 11 of 20
11. Question
3 years ago, the ratio of age of A and B is 5: 4. C is 8 years younger than A. The present age of C is 4 times of D’s present age. Find the present age of B, if the age of D, after 7 years is 12 years?
Correct
Answer: a)
3 years ago, the ratio of age of A and B = 5: 4 (5x, 4x)
The present age of A and B = 5x + 3, 4x + 3
Present age of C = Present age of A – 8
Present age of D = 12 – 7 = 5
Present age of C = 4 * present age of D
= > 4*5 = 20 years
Present age of A = 20 + 8 = 28 years
5x + 3 = 28
5x = 25
X = 5
The present age of B = 4x + 3 = 23 years
Incorrect
Answer: a)
3 years ago, the ratio of age of A and B = 5: 4 (5x, 4x)
The present age of A and B = 5x + 3, 4x + 3
Present age of C = Present age of A – 8
Present age of D = 12 – 7 = 5
Present age of C = 4 * present age of D
= > 4*5 = 20 years
Present age of A = 20 + 8 = 28 years
5x + 3 = 28
5x = 25
X = 5
The present age of B = 4x + 3 = 23 years
Question 12 of 20
12. Question
The volume of cylinder 1 and 2 is in the ratio of 5: 6 and the radius of cylinder 1 and 2 is in the ratio of 5: 8. Find the ratio between the heights of cylinder 1 to that of cylinder 2?
Correct
Answer: c)
Volume of the cylinder = πr^{2}h
The ratio of volume of cylinder 1 and 2 = 5: 6
The ratio of radius of cylinder 1 and 2 = 5: 8
The ratio between the heights of cylinder 1 to that of cylinder 2
= > [π*(25)*h1]/[ π*(64)*h2] = (5/6)
= > h1/h2 = (32/15)
= > h1 : h2 = 32 : 15
Incorrect
Answer: c)
Volume of the cylinder = πr^{2}h
The ratio of volume of cylinder 1 and 2 = 5: 6
The ratio of radius of cylinder 1 and 2 = 5: 8
The ratio between the heights of cylinder 1 to that of cylinder 2
= > [π*(25)*h1]/[ π*(64)*h2] = (5/6)
= > h1/h2 = (32/15)
= > h1 : h2 = 32 : 15
Question 13 of 20
13. Question
A 150 m long train A crosses the pole at the speed of 20 sec. If another train B crosses the train A, which is 175 m long from opposite direction at a speed of 25 m/sec. What is the time taken to cross each other?
Correct
Answer: d)
Speed of Train A = 150/20 = (15/2) m/s
T = D/S
T = (150 + 175)/(25 + (15/2))
T = (325*2)/65 = 10 sec
Incorrect
Answer: d)
Speed of Train A = 150/20 = (15/2) m/s
T = D/S
T = (150 + 175)/(25 + (15/2))
T = (325*2)/65 = 10 sec
Question 14 of 20
14. Question
The ratio between Rakesh and Kalai is 17: x. Kalai is 2 years elder than Manoj. Manoj’s age after 4 years will be 20 years. The difference between Rakesh and Kalai is equal to Manoj’s age. Find the value of x?
Correct
Answer: b)
The present age of Rakesh and Kalai = 17: x
Kalai = Manoj + 2
Manoj’s present age = 20 – 4 = 16 years
Kalai’s present age = 16 + 2 = 18
Rakesh’s age – Kalai’s age = Manoj’s age
Rakesh’s age = 16 + 18 = 34
17’s = 34
1’s = 2
The value of x = Kalai’s age/2 = 18/2 = 9
Incorrect
Answer: b)
The present age of Rakesh and Kalai = 17: x
Kalai = Manoj + 2
Manoj’s present age = 20 – 4 = 16 years
Kalai’s present age = 16 + 2 = 18
Rakesh’s age – Kalai’s age = Manoj’s age
Rakesh’s age = 16 + 18 = 34
17’s = 34
1’s = 2
The value of x = Kalai’s age/2 = 18/2 = 9
Question 15 of 20
15. Question
A man covered half of the distance by bus with a speed of 50 km/hr and the remaining distance will be covered by bike with a speed of 80 km/hr. Find the total distance covered by the man, if the total time taken by him is 6 hours 30 mins?
Correct
Answer: a)
Total time taken by him = 6 hours 30 min = 6 ½ hour = 13/2 hour
T = D/S
(x/2)/50 + (x/2)/80 = 13/2
(x/100) + (x/160) = 13/2
(160x + 100x)/(100*160) = 13/2
260x/(100*160) = 13/2
X = 400 km
Incorrect
Answer: a)
Total time taken by him = 6 hours 30 min = 6 ½ hour = 13/2 hour
T = D/S
(x/2)/50 + (x/2)/80 = 13/2
(x/100) + (x/160) = 13/2
(160x + 100x)/(100*160) = 13/2
260x/(100*160) = 13/2
X = 400 km
Question 16 of 20
16. Question
Directions (16 – 20): Study the following information carefully and answer the questions given below:
Number of items produced by company A in 2010 is what percent of the number of items produced by company C in 2011?
Correct
Answer: b)
Required percentage = (1750/500) x 100 = 350%
Incorrect
Answer: b)
Required percentage = (1750/500) x 100 = 350%
Question 17 of 20
17. Question
Directions (16 – 20): Study the following information carefully and answer the questions given below:
Find the sum of total number of items produced by companies D and E in all the years together.
Directions (6 – 10): What value should come in the place of question mark (?) in the following number series?
6) 3456, 1740, 880, 448, 230, ?
a) 156
b) 132
c) 143
d) 127
e) 119
7) 9, 14, 51, 188, 965, ?
a) 2378
b) 5754
c) 3136
d) 4620
e) 2950
8) 785, 797, 817, 847, 889, 945, ?
a) 1278
b) 1564
c) 1329
d) 1017
e) 1690
9) 31, 33, 64, 194, 774, ?
a) 3872
b) 3524
c) 3156
d) 2875
e) 2354
10) 16, 24, 36, 54, 81, ?
a) 156.5
b) 134
c) 121.5
d) 145
e) 128
11) 3 years ago, the ratio of age of A and B is 5: 4. C is 8 years younger than A. The present age of C is 4 times of D’s present age. Find the present age of B, if the age of D, after 7 years is 12 years?
a) 23 years
b) 26 years
c) 28 years
d) 32 years
e) None of these
12) The volume of cylinder 1 and 2 is in the ratio of 5: 6 and the radius of cylinder 1 and 2 is in the ratio of 5: 8. Find the ratio between the heights of cylinder 1 to that of cylinder 2?
a) 25: 16
b) 20: 13
c) 32: 15
d) 36: 19
e) None of these
13) A 150 m long train A crosses the pole at the speed of 20 sec. If another train B crosses the train A, which is 175 m long from opposite direction at a speed of 25 m/sec. What is the time taken to cross each other?
a) 24 sec
b) 16 sec
c) 32 sec
d) 10 sec
e) None of these
14) The ratio between Rakesh and Kalai is 17: x. Kalai is 2 years elder than Manoj. Manoj’s age after 4 years will be 20 years. The difference between Rakesh and Kalai is equal to Manoj’s age. Find the value of x?
a) 12
b) 9
c) 15
d) 17
e) None of these
15) A man covered half of the distance by bus with a speed of 50 km/hr and the remaining distance will be covered by bike with a speed of 80 km/hr. Find the total distance covered by the man, if the total time taken by him is 6 hours 30 mins?
a) 400 km
b) 325 km
c) 250 km
d) 450 km
e) None of these
Directions (16 – 20): Study the following information carefully and answer the questions given below:
16) Number of items produced by company A in 2010 is what percent of the number of items produced by company C in 2011?
a) 170%
b) 350%
c) 320%
d) 230%
e) None of these
17) Find the sum of total number of items produced by companies D and E in all the years together.
a) 9250
b) 9025
c) 5290
d) 5029
e) None of these
18) Number of items sold by all the companies in 2010 is what percent more than the number of items sold by company C in all the years together?
a) 57.8%
b) 75.8%
c) 70.58%
d) 50.78%
e) None of these
19) Find the difference between total number of items sold by all the companies in 2011 and 2012.
a) 2000
b) 5000
c) 3000
d) 4000
e) None of these
20) Find the respective ratio between total number of items sold by companies B, E in 2010 and total number of items sold by A and D in 2012.